A person who shares a house, apartment, dorm, or room with others and is by nature opposed to domestic tranquility. He or she demonstrates a compulsive need to disturb the peace by pissing other people off. This is usually because he or she derives pleasure from sowing discord or just messing with someone's head. As a result, this kind of person will frequently target easily goaded individuals, and the pussy-bitch is its natural prey. This person is sometimes referred to as a dick or douche.

David: What was all that yelling about?
Aidan: Matt was bitching at me for not bolting the front door when it's dark out. I told him I would do it, but I also said that he was a pussy-bitch for wanting me to do it. The one lock works just as well.
David: Your a God damn agitator! If you were going to bolt the door why did you have to rile him up like that?
Aidan: I had to...I really enjoy pissing him off.
David: Fucking agitator...You're a bitch.
Aidan: Whore...